Amendment #4: Common Very Low Frequency Receiver (VLF) Increment 2 (CVRi2) Modernization
| Agency | Department of Defense Department of the Air Force |
| Contracting office | Fa8735 Nuclear Ntw Div Afnwc Pzhn |
| Place of performance | Hanscom AFB, MA |
| Type of notice | Open for bids |
| Set-aside | No Set aside used |
| Response deadline | Aug 5, 2026 |
| Posted | Jun 8, 2026 |
| Solicitation number | FA8735-26-R-B001 |
| NAICS code | 541715, Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) |
Summary from the notice
Amendment #4 (8 June 2026) for the Common Very Low Frequency Receiver Increment 2 (CVRi2) Modernization Fair Opportunity Proposal Request (FOPR) has been released. This amendment updates the Proposal Submission Date to 5 August 2026 at Noon Eastern. Award eligibility remains restricted to AFLCMC/XA IDIQ Category 2 awardees. Amendment #3 (28 May 2026) for the Common Very Low Frequency Receiver Increment 2 (CVRi2) Modernization Fair Opportunity Proposal Request (FOPR) has been released. This amendment updates the Bidder's Library, corrects SOW deficiencies, introduce a new contract clause, and incorporates formal responses to industry's questions. Award eligibility remains restricted to AFLCMC/XA IDIQ Category 2 awardees. Updates: Industry Q&A: Incorporates responses to questions submitted by Industry. Bidder’s Library (Appendix 3): The Content List has been updated; unclassified documents are now available for download. SOW Incorporated a MIL-STD correction. Model Contract: Added clause RFO 52.222-90. Amendment #2 (19 May 2026) for the Common Very Low Frequency Receiver Increment 2 (CVRi2) Modernization Fair Opportunity Proposal Request (FOPR) has been released. This amendment updates Appendix 3 (Bidder’s Library Content List) of the FOPR and extends the proposal deadline to 8 July at Noon Eastern Time. The Unclassified Documents of the Bidder’s Library are now available to download. Please note that award eligibility remains strictly limited to AFLCMC/XA IDIQ Category 2 contr…
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